参数资料
型号: SM802104UMG
厂商: Micrel Inc
文件页数: 8/11页
文件大小: 0K
描述: IC SYNTHESIZER 2CH 24-QFN
产品培训模块: High Bandwidth Product Overview
标准包装: 100
系列: ClockWorks™, RotaryWave™
类型: 时钟/频率合成器,多路复用器
PLL:
主要目的: 光纤通道
输入: LVCMOS,晶体
输出: LVPECL
电路数: 1
比率 - 输入:输出: 2:2
差分 - 输入:输出: 无/是
频率 - 最大: 212.5MHz
电源电压: 2.375 V ~ 3.465 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-VFQFN 裸露焊盘
供应商设备封装: 24-QFN(4x4)
包装: 管件
其它名称: 576-3929
Micrel, Inc.
SM802104
April 2011
6
M9999-042111-A
hbwhelp@micrel.com or (408) 955-1690
AC Electrical Characteristics
(4, 5)
VDD = VDDO1/2 = 3.3V ±5% or 2.5V ±5%
VDD = 3.3V ±5%, VDDO1/2 = 3.3V ±5% or 2.5V ±5%
TA = -40°C to +85°C. RL = 50 to VDDO - 2V
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
FOUT1
Output Frequency 1
FSEL=1
106.25
MHz
FOUT2
Output Frequency 2
FSEL=0
212.5
MHz
Ppm
Output ppm Variation
Crystal reference. Note 6
-50
50
ppm
FREF
Reference Input Frequency
26.5625
MHz
TR/TF
LVPECL Output Rise/Fall Time
20% – 80%
80
175
350
ps
ODC
Output Duty Cycle
48
50
52
%
TSKEW
Output-to-Output Skew
Within bank. Note 7
45
ps
TLOCK
PLL Lock Time
20
ms
Tjit()
RMS Phase Jitter
(8)
106.25MHz
Integration Range (637kHz – 10MHz)
Integration Range (12kHz – 20MHz)
212.5MHz
Integration Range (637kHz – 10MHz)
Integration Range (12kHz – 20MHz)
200
250
200
250
fs
Spurious Noise Components
26.5625MHz using 106.25MHz
26.5625MHz using 212.5MHz
-80
-85
dBc
Notes:
5.
All phase noise measurements were taken with an Agilent 5052B phase noise system.
6.
Crystal tolerance at room less than
± 15ppm, over temp less than ±20ppm.
7.
Defined as skew between outputs at the same supply voltage and with equal load conditions and same frequency; Measured at the output
differential crossing points.
8.
Measured using 26.5625MHz crystal as the input reference source. If using an external reference input, use a low phase noise source. With an
external reference, the phase noise will follow the input source phase noise up to about 1MHz.
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